If n, e, `tau`, m, are representing electron density charge, relaxation time and mass of an electron respectively then the resistance of wire of length 1 and cross sectional area A is given by

Options

A. `(2 m l )/(Ne^(2)A tau )`
B. `(2m tau A)/(Ne^(2)l)`
C. `(Ne^(2) tau A)/(2 ml )`
D. `(Ne^(2)A)/(2 m tau l)`